Home / 39,629.55-59,407.11-13,315.89

Finding the Fourth Proportional to 39,629.55, 59,407.11 and 13,315.89

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Solution

The fourth proportional to 39,629.55, 59,407.11 and 13,315.89 is: 19,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,629.55 : 59,407.11 = 13,315.89 : x
  2. Step 2: Convert to fraction form
    39,629.55/59,407.11 = 13,315.89/x
  3. Step 3: Cross multiply
    39,629.55x = 59,407.11 × 13,315.89
  4. Step 4: Simplify right side
    39,629.55x = 791,058,541.98
  5. Step 5: Solve for x
    x = 791,058,541.98/39,629.55
  6. Step 6: Final answer
    x = 19,961.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.